Marines drag casualty from street fighting for control of southern bridge, head across street to an ambulance in Hue, Vietnam, Feb. 4, 1968. (Associated Press)

At the end of January in 1968, the Viet Cong launched an offensive that turned the tide of the Vietnam War.

The Tet Offensive began on January 30 as the North Vietnamese occupied the city of Hue. U.S. Marines spent nearly a month fighting a brutal urban battle to retake the city — which was 80% destroyed by the battle's end, according to H.D.S. Greenway, a photographer embedded with the Marines during the war.

An estimated 1,800 Americans lost their lives during the battle.

But in the midst of the chaos, five men who faced harrowing circumstances risked their lives to save those of their comrades — and earned the nation's highest award for courage in combat, the Medal of Honor.

A highly decorated Army Special Forces soldier pleaded guilty to charges of drug trafficking conspiracy, admitting he attempted to smuggle nearly 90 pounds of cocaine from Colombia to Florida aboard a military aircraft in August 2018.

A psychologist at Travis Air Force Base in California was found guilty on Friday of sexually assaulting military officer patients who were seeking treatment for post-traumatic stress disorder, The Daily Republic reported.

The Department of Defense announced Tuesday that active-duty troops deployed to the U.S.-Mexico border will stay there through the holidays. Originally slated to return home on December 15, troops will now remain at their assignment through at least January 31, 2019.